ECD SYSTEM, Diagnostic DTC:P2141, P2142

DTC Code DTC Name
P2141 Diesel Throttle Motor Circuit Low
P2142 Diesel Throttle Motor Circuit High

DESCRIPTION

The throttle actuator is operated by the ECM and opens and closes the throttle valve using gears. The opening angle of the throttle valve is detected by the Throttle Position (TP) sensor, which is mounted on the throttle body.

P2141
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Idle the engine for 5 seconds or more

The throttle actuator current is below 0.5 A for 2.0 seconds during EGR valve operation.

(1 trip detection logic)

  • Open or short in throttle actuator circuit

  • Diesel throttle valve assembly

  • ECM
P2142
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Idle the engine for 5 seconds or more

An throttle actuator current of 8 A or higher due to a mechanical malfunction, or a Hall IC temperature of 150 to 160°C (302 to 320°F) or higher is detected.

(1 trip detection logic)

  • Open or short in throttle actuator circuit

  • Diesel throttle valve assembly

  • ECM
DTC No. Data List
P2141 Throttle Motor DUTY
P2142

WIRING DIAGRAM

A003BGME12

INSPECTION PROCEDURE

Note

After replacing the ECM, the new ECM needs registration Click here and initialization Click here.

PROCEDURE


  1. INSPECT DIESEL THROTTLE BODY ASSEMBLY


    1. Inspect the diesel throttle body assembly Click here.


    NG

    REPLACE DIESEL THROTTLE BODY ASSEMBLY Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (ECM - DIESEL THROTTLE BODY)


    1. A003BURE47
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Throttle Body)
      *2

      Front view of wire harness connector

      (to ECM)

      Disconnect the throttle control motor connector.

    2. Disconnect the ECM connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      B7-2 (M+) - B39-42 (M+) Always Below 1 Ω
      B7-1 (M-) - B39-43 (M-) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      B7-2 (M+) or B39-42 (M+) - Body ground Always 10 kΩ or higher
      B7-1 (M-) or B39-43 (M-) - Body ground Always 10 kΩ or higher

    4. Reconnect the throttle control motor connector.

    5. Reconnect the ECM connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  3. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  4. REPLACE DIESEL THROTTLE BODY ASSEMBLY


    1. Replace the diesel throttle body assembly Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  5. REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.


    NEXT

  6. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the intelligent tester to the DLC3.

    2. Clear the DTCs Click here.

    3. Start the engine.

    4. Idle the engine for 5 seconds or more

    5. Enter the following menus: Powertrain / Engine and ECT / DTC.

    6. Confirm that the DTC is not output again.


    NEXT

    END